Monkey See, Monkey Don't
In Shangri-La, get something from the monkeys.
10/5/2011
9:39:22 PM
Ultra Rare 4.3%
Downed but Not Out
Kill 4 enemies in a row while downed in Special Ops.
9/8/2011
12:11:59 AM
Very Rare 5.8%
Operative
Earn all 3 stars in at least 10 different Special Op missions.
9/7/2011
11:08:07 PM
Very Rare 5.6%
Blinded By the Fright
In Shangri-La, kill a Shrieker zombie while blinded by it.
8/21/2011
5:53:45 PM
Ultra Rare 3.4%
Operational Asset
Earn all 3 stars in at least 5 different Special Op missions.
8/20/2011
2:52:53 AM
Very Rare 9.7%
It Goes to Eleven
Earn at least 1 star in 11 different Special Op missions.
8/20/2011
2:52:48 AM
Rare 17.0%
Perkaholics Anonymous!
Survive until round 20 without buying a single Perk. (Map Pack 3 only)
8/16/2011
10:04:39 PM
Ultra Rare 4.7%
